The push to salvage a Pacific Rim trade pact will come to a head this week as nations diverge on whether it should be preserved, abandoned or renegotiated from scratch after President Donald Trump pulled the USA out of the deal.

But while Japan has been lobbying hard for a quick agreement to move ahead, Canada, New Zealand and Malaysia are among countries that have appeared less enthusiastic to hurry.

Reports this morning from ministers at Apec in Vietnam, where the TPP is being negotiated on the sidelines, conflicted as to whether a deal was completed.

"Unfortunately in between that meeting and the meeting of leaders today, Prime Minister Trudeau raised a number of issues which meant that we were unable to the leaders meeting forward today".

There have been speculations about a TPP announcement since the beginning of the APEC summit on Monday. This is a global age, and Asia is the center of growth.

"We've got to go hard on those Asian relationships", said Barton, who led McKinsey operations in Asia and South Korea for almost a decade.

The host suggested that Canada recognise Vietnam as a market economy soon, further open its market further to Vietnamese goods and provide more support for the Vietnamese community.

Canada has hosted talks to save the TPP, and Champagne said he wasn't proposing a full-scale renegotiation.

Eric Miller, a Washington trade consultant, said Canada address these concerns by agreeing to sign on to a mechanism to review the TPP.

A senior government official has said Canadian negotiators are seeking changes to the original TPP in several areas, such as its intellectual-property provisions, cultural exemptions and its impact on Canada's supply management system for dairy, poultry and eggs.

Trudeau told reporters the agreement would also help advance the countries' ongoing dialogue on human rights.